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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QTEXTMARKDOWNIMPORTER_H
#define QTEXTMARKDOWNIMPORTER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qfont.h>
#include <QtGui/qtguiglobal.h>
#include <QtGui/qpalette.h>
#include <QtGui/qtextdocument.h>
#include <QtGui/qtextlist.h>
#include <QtCore/qpointer.h>
#include <QtCore/qstack.h>
#include <QtCore/private/qglobal_p.h>
QT_BEGIN_NAMESPACE
class QTextCursor;
class QTextDocument;
class QTextTable;
class Q_GUI_EXPORT QTextMarkdownImporter
{
public:
enum Feature {
FeatureCollapseWhitespace = 0x0001,
FeaturePermissiveATXHeaders = 0x0002,
FeaturePermissiveURLAutoLinks = 0x0004,
FeaturePermissiveMailAutoLinks = 0x0008,
FeatureNoIndentedCodeBlocks = 0x0010,
FeatureNoHTMLBlocks = 0x0020,
FeatureNoHTMLSpans = 0x0040,
FeatureTables = 0x0100,
FeatureStrikeThrough = 0x0200,
FeaturePermissiveWWWAutoLinks = 0x0400,
FeatureTasklists = 0x0800,
FeatureUnderline = 0x4000,
// composite flags
FeaturePermissiveAutoLinks = FeaturePermissiveMailAutoLinks
| FeaturePermissiveURLAutoLinks | FeaturePermissiveWWWAutoLinks,
FeatureNoHTML = QTextDocument::MarkdownNoHTML,
DialectCommonMark = QTextDocument::MarkdownDialectCommonMark,
DialectGitHub = QTextDocument::MarkdownDialectGitHub
};
Q_DECLARE_FLAGS(Features, Feature)
QTextMarkdownImporter(Features features);
QTextMarkdownImporter(QTextDocument::MarkdownFeatures features);
void import(QTextDocument *doc, const QString &markdown);
public:
// MD4C callbacks
int cbEnterBlock(int blockType, void* detail);
int cbLeaveBlock(int blockType, void* detail);
int cbEnterSpan(int spanType, void* detail);
int cbLeaveSpan(int spanType, void* detail);
int cbText(int textType, const char* text, unsigned size);
private:
void insertBlock();
private:
QTextDocument *m_doc = nullptr;
QTextCursor *m_cursor = nullptr;
QTextTable *m_currentTable = nullptr; // because m_cursor->currentTable() doesn't work
#if QT_CONFIG(regularexpression)
QString m_htmlAccumulator;
#endif
QString m_blockCodeLanguage;
QList<int> m_nonEmptyTableCells; // in the current row
QStack<QPointer<QTextList>> m_listStack;
QStack<QTextCharFormat> m_spanFormatStack;
QFont m_monoFont;
QPalette m_palette;
#if QT_CONFIG(regularexpression)
int m_htmlTagDepth = 0;
#endif
int m_blockQuoteDepth = 0;
int m_tableColumnCount = 0;
int m_tableRowCount = 0;
int m_tableCol = -1; // because relative cell movements (e.g. m_cursor->movePosition(QTextCursor::NextCell)) don't work
int m_paragraphMargin = 0;
int m_blockType = 0;
char m_blockCodeFence = 0;
Features m_features;
QTextImageFormat m_imageFormat;
QTextListFormat m_listFormat;
QTextBlockFormat::MarkerType m_markerType = QTextBlockFormat::MarkerType::NoMarker;
bool m_needsInsertBlock = false;
bool m_needsInsertList = false;
bool m_listItem = false; // true from the beginning of LI to the end of the first P
bool m_codeBlock = false;
bool m_imageSpan = false;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QTextMarkdownImporter::Features)
QT_END_NAMESPACE
#endif // QTEXTMARKDOWNIMPORTER_H
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